Command Line Arguments; Example Measurement Setups - OPTICOM OPERA - V 3.5 User Manual

C H A P T E R 5 :
Objective Difference Grade (ODG) and DI
The last two bars in the diagram shown in Figure 5.31 are the Distortion
Index (DI) and the final Objective Difference Grade (ODG). The "AV" in the
brackets indicates that this value is a result of the Advanced Version of the
PEAQ algorithm.
Note:
Never compare the ODG value of one measurement with the DI
value of another.

5.5.6 Command Line Arguments

The current PEAQ implementation provides several algorithm specific
command line parameters to:
•
Set the version of the algorithm (basic, advanced)
•
Set the listening level
•
Set the logging of the results
These parameters essentially follow the settings of the algorithm parameter
dialog and are listed with a short comment on their usage in the following:
Keyword
Version
Level
LogActive
LogODG
LogInterval
LogFileName

5.6 Example Measurement Setups

To an inexperienced user of the OPERA™ measurement system, the following
examples might be useful to assist in the first measurements. The first example
demonstrates a typical real time measurement, Example 2 deals with a file
based measurement and finally you will get to know a typical application of
measurements from a batch file with Example 3.
W I D E B A N D A U D I O
Add. Parameter
0 = Basic; 1 = Advanced
Listening Level of a 1kHz
0dBfs sine tone
float
duration
FileName
107
Q U A L I T Y T E S T I N G
Comment
Select the Version of the Algorithm
Set the listening level according to
BS.1387
Switch logging on
Logging if ODG <= float
Logging intervals in s
Name of the logfile